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Asteroids, Comets and Meteors
Near-Earth Object Impacts
Geology
Earth Science
Atmosphere
Environmental Issues
Tiny 'Spherules' Reveal Details About Earth's Asteroid Impacts
April 25, 2012 — Researchers are learning details about asteroid impacts going back to the Earth's early history by using a new method for extracting precise information from tiny "spherules" embedded in layers of ... > full story -
Splatters of Molten Rock Signal Period of Intense Asteroid Impacts on Earth
April 25, 2012 — New research reveals that the Archean era -- a formative time for early life from 3.8 billion years ago to 2.5 billion years ago -- experienced far more major asteroid impacts than had been ... > full story -
NASA's Dawn Spacecraft Reveals Secrets of Giant Asteroid Vesta
April 25, 2012 — Findings from NASA's Dawn spacecraft reveal new details about the giant asteroid Vesta, including its varied surface composition, sharp temperature changes and clues to its internal structure. The ... > full story -
Mathematics: First-Ever Image of a Flat Torus in 3-D
April 25, 2012 — Just as a terrestrial globe cannot be flattened without distorting the distances, it seemed impossible to visualize abstract mathematical objects called flat tori in ordinary three-dimensional space. ... > full story -
Asteroids, Comets and Meteors
Near-Earth Object Impacts
NASA
Space Exploration
Earth Science
Space Missions
Fireball Over California/Nevada: How Big Was It?
April 24, 2012 — A bright ball of light traveling east to west was seen over the skies of central/northern California Sunday morning, April 22. The former space rock-turned-flaming-meteor entered Earth's atmosphere ... > full story -
Extreme Gardening on Mars? European Research Project Focuses on Development of Life Support Units
April 24, 2012 — A new project is being conducted by European researchers to plant the seeds for possible gardening on Mars on day. The plan for the future will be to grow first vegetables on Earth in a closed ... > full story -
Climate
Environmental Policies
Global Warming
Environmental Issues
Resource Shortage
Environmental Policy
Climate Change May Create Price Volatility in the Corn Market
April 22, 2012 — Corn, America's No. 1 crop, could see its prime growing region shift to the Canadian border or its price volatility increase sharply within 30 years. A new study points to climate change as the ... > full story -
Dawn Gets Extra Time to Explore Vesta
April 20, 2012 — NASA's Dawn mission has received official confirmation that 40 extra days have been added to its exploration of the giant asteroid Vesta, the second most massive object in the main asteroid belt. The ... > full story -
Cassini Finds Titan Lake Is Like a Namibia Mudflat
April 20, 2012 — A new study analyzing data from NASA's Cassini spacecraft suggests that the lake, known as Ontario Lacus, behaves most similarly to what we call a salt pan on ... > full story -
NASA Image Gallery Highlights Earth's Changing Face
April 20, 2012 — In celebration of this year's Earth Day on April 22, NASA's Global Climate Change website has unveiled a new version of its popular image gallery, "State of Flux." The gallery presents stunning ... > full story
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